Coin receptacle cover



July 23, 1935. J. K. JACKSON l y COIN RECEPTACLE COVER Filedl NOV. 25, 1934- pmu..

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(5 @Wn n hun IIIIIM...filllllllhl ATTORNEY Patented `July 23, 1935 i Y 2,009,085

y HyUN-'i-"rlzo STATES PATENT OFFICficon: REcEP'rAcLE covEa John K. Jackson, Cranford, N. J., assignor to Bell` l Telephone Laboratories, Incorporated, Newv j York, N. Y., a corporation of New York'` ApplicationNoveinber l23, 1934,'Serial No. 754,393

` rI k7 claims. Vv(o1. 23a-+15) This invention relates to shutters and particufrom a chute (not shown) located above Ytherelarly to shutters for coin receptacles such as are ceptacle. When the receptacle is removed from used in telephone paystations. its associated apparatus, aperture I I is closed by It hasvbeen proposed'to make shutters for coin shutter |2, which is an irregularly shaped mem receptaclesself-locking so that when the recepber secured at one end to a rotatabler shaft I3 y"is tacle is in place in the ,device in which the coins and provided at the opposite end with a finger I4. are dropped,H it will be open to receive the coins, An arcuate slot I5 is provided in cover II) through but as the receptacle is withdrawn, the shutter which finger I4 is passed to provide an external will close and lock and thereby prevent unauthorportion by which shutter |2 may ber manipulated.

10 izedv persons. from removing the contents., In A spring IS is used to hold shutter I2 in closed 10 such devices the locking means usually becomes position. W t Y Y I. efective only when the shutter is completely Rigidly secured to shaft I3 is a plate cam' II, closed, butprior'to' that time the shutter is unthe operative edge of whichiis located at I8. `locked and is therefore susceptible tofraudulent Since cam I1 isrigidly secured tol shaft I3, it roentry.; l tates whenever shutter I2 is rotated. ,Operative 15 The object of this invention is to provide a surface I8 is preferably madein the form of an lockingmeans for a shutter which is capable of 'arev of a circle, the center of which is located'on locking the shutter against 'further opening no the'axis of shaft I3. 'A fixed cam surface i9 is matter to vwhat degree the shutter is already located opposite movable cam I 1 and, forms a opened, but which does not at the same time prepart of locking block 20. f Cam surface IS-is so 20 vent the shutter from closing.- 1 f y contoured with respect topcam surface IBthatit AIn its preferred formthis invention comprises Vforms a passageway therewith which is progresa pivoted shutter to whichvissecured a plate cam. sively narrower toward its lower end. A roller Opposite the plate cam is a fixed block or cam followerZI is mounted on a pivoted support 22,

designed to form with the plate cam apassagewhich is biased by spring 2 3 to'urge follower 2| g5 Way which is progressively narrower in a predeinto the passageway at its rwidest end until foltermined direction.A A roller follower, mounted lower 2| `is locked between cam surfaces I8 and I9. on a pawl is biased to enter the passageway and WhenA so locked, shutter l2 Y is likewiselocked to Vpreventmovement'of the plate cam'in the'diagainst opening, inasmuch as counter-clockwise l 80 rection which would tend to; forcethe follower rotation of shutter I 2 tendsV to rotate cam 'I1 in 30 into the narrowed passageway. The pawl may the same directionv and vstill further tends to lock be latched against a'pivoted detent which is aU.-V follower 2| between cam surfaces I8 and I9.V tornatically released when the shutter is fully Roller follower 2| may be withdrawn from the open. v The latching is accomplished by means passageway by rotating its support 22 counterof a. key which engages anvextension of the pawl clockwise. To effectuate this rotation an exten'- 35 and rotates the pawl until itis latched. sion 24 is provided' as a rigid portion of member For a better understanding of this invention, 22, and by inserting a suitable key into key-hole reference is made to the accompanying drawing 25 and rotating the key clockwise, contact kmay in which: i l be established between the key and extension 24 40 Fig'.- l is a-plan view of a shutter ,in'closed posiwhereby support 22 may be rotated-.and the fol- 40 tion'with a portion'of the cover cut away to vexlower 2| withdrawn from the passage. When the pose the locking means; A Y `container is to be emptiedit isl necessary to Fig-f2 iS a 'plan View 0f a Shutter Showing the .maintain follower 2| out of -thepassageway and IOCkhg means in lllllOCkedC0I1O'liton;-A this would be awkward if it vwere to be accom- 3 is a plan view of a shutter in fully opened plishedby means of the keyalone, since the key 45 DOBiiOn: Y v would have to be held in a given position against Fig. 4 iS a Plan View 0f 2. Shuttern partially the action of spring 2?k all the time that the opened position; and, shutter is open. Accordingly, a latching` means Fig. 5 is a fragmentary vertical section on line is provided whereby follower 2| may be auto- 15-5 of Figlshowing means in elevation. matically'maintainedout of contactfwith cam 50 'Using'Fig llas a guide, the novel shutter may surfaces I8 and I9. The latchng means cornbegenerally described as follows: Thereceptacle prises a pawl 26, which forms a part of Vroller or other device with which the -novel shutter follower support 22, cooperating with a` detent mechanism' is used is provided with a -cover I0 2l pivotedat 28. Detent 21 is urged rin a Yoouny which is aperturedat to receive coins or checks ter-clockwise direction by spring 29, and is lim- 55 ited in its movement in that direction by a fixed stop 30. The releasing of pawl 26 and roller follower 2I is preferably accomplished automatically upon opening shutter I2 beyond a predetermined point. This may be done by providing an extension 3I to detent 21 on the opposite side of pivot 28, and a pin 32 at the end of extension 3I to cooperate with an arcuate slot 33 in cam I1, so that when shutter I2 is opened, cam I1 is rotated and the upper end of slot 33 strikes pin 32 and rocks detent 21 about its pivot 28, thereby releasing pawl 26.

For greater protection against tampering byV unauthorized persons, the above elements are encased in various compartments as shown in the elevation of Fig. 5. One compartment is formed by cover I0 and inner cover 34, and in thiscompartment is placed shutter I2. The second compartment is formed by inner cover 34 and shallow container 35, a rectangular portion of which is extruded to form a third Acompartment 36. The second compartment includes cam I1, spring I6, roller follower 2I, locking block 20,' spring 23 and pin 32. AThe third compartment includes roller support 22, pawl 26, detent 21 and its pivot 28 and extension 3l. Extension 24, which cooperates with the key to latch roller 2 I, spring 29 and stop 30 are located outside the third container 36 and below container 35, thereby causing three metal partitions tov be interposed between them and the exterior.

The shutter and locking means are designed to operate in such a manner that when the recepta-` cle is in place beneath the coin chute infthe associated apparatus, the shutter will be open, and as the receptacle is removed, the shutter Vwill automatically close and lock and remain locked until release by a key. At intermediate points between fully opened and fully closed positions, the locking means is designed to prevent further opening, but not to prevent further closing.

As shown in Fig. 1, the receptacle'is removed from its associated apparatus and shutter I2 is in closed position. Roller follower 2lV is locked between cam surfaces I8 and I9 and hence no access may be had to the inside of the receptacle without the aid of a key. Assuming now that the mechanism has been unlocked and latched in this position, shutter I2 stilltends to close, due to the action of spring I6, but it can easily be opened andthe contents of the receptacle can readily be removed. After the removal of the contents, the locking means is still latched in unlocked -positon and shutter I2 is closed. Upon inserting the receptacle into its place beneath the coin chute, finger I4'of shutter I2 passes through a slot 31 in the apparatus until it strikes edge 3B. At this point (Fig.` 2) the receptacle is not fully in place and must be inserted still further to bring aperture I I to its proper place.

Referring now to Fig. 3, the position of the shutter and the condition of the locking means are shown after the receptacle has been completely inserted. The shutter is in open position, due to the relative displacement of edge 38 with respect to the receptacle which causes the shutter to be rotated counter-clockwise, and the locking means `is unlatched, due to the cooperation between pin 32 and the upper edge of slot 33. The apparatus remains in this condition until it is withdrawn.

Fig. 4 shows a receptacle when it is partly withdrawn. There is nothing to prevent it from being completely withdrawn becausethis would automatically close and lock the shutter. If an attempt is made to reinsert the receptacle, roller follower 2I will lock between cam surfaces I8 and I9 and prevent the reinsertion unless the locking means is unlatched and locked in this condition by means of a key. Thus the receptacle must either be completely withdrawn or completely inserted in both of which cases no access can be had to the inside of the receptacle except through a destruction of the receptacle "or'associated apparatus or with the aid of a key.

`The unlatching of roller follower 2I is dependent upon the position of the end of slot 33 with respect to pin 32 and hence by a proper design of these elements follower 2I can be made to release at any desired point between the extreme positions of shutter I2.

It is understood that the foregoing is merely descriptiveof one form of the invention and that the scope of the invention therefore is not to be limited thereby but is to be determined by the appended claims.

What is claimediis: y

1. A wall having an opening therein, a shutter for the opening, means for locking the shutter against motion in a predetermined direction, said locking means comprising a cam controlled 'by said shutter, an opposed cam in fixed relation'to the wall and a follower adapted to engage'both cams, said cams dening a progressivelyy con-V stricted passageway for` the follower Ain the di rection against which the shutter is locked,

2. `A wall having an opening therein, a shutter for the opening, meansforA locking the'shutter against motion ina predetermined direction, said locking means comprising a `cam controlled 'by said shutter, a lfixed cam surface and a follower adapted to engage both cams, means for disen gaging the locking means from said shutterjsaid disengaging means comprising a pawl secured to the follower, and means engaging the pawl for holding the follower in disengaged position, said last mentioned means being controlled by the shutter to release said pawl. 1

3. A wall having an opening therein, a shutter for the opening, means for locking theshutter against motion in a predetermined direction irrespective'of the position of theshutter relative to the opening, a latch to engage said locking means to hold-it in unlocked position, said latch being controlled by the shutter to release said locking means. v Y

4. A wall having an openingV therein, a shutter for the opening, means for locking the shutter against motion in a predetermined direction irrespective of theposition of the shutter relative to the opening, a pivoted latch 'to hold the locking means in unlocked position, means operable when the shutter is in open position to trip the latch, said tripping means comprising an extension of the latch and an extension of the shutter adapted to engage the latch extension when'the shutter is fully open. Y

5. A coin receptacle having a coin receiving opening therein, a shutter for said opening, means for locking the shutter against reopening before it is fully closed, said locking means comprising a cam controlled by the shutterya cam in'xed relation to the receptacle, said controllable and fixed cams defining a progressively constricted opening, a roller adapted to cooperate with ysaid cams, a pivoted support for the lroller for swinging the roller into and out of engagement with the cams, a pawl on the roller support,. a pivoted detent cooperating with the pawlto'hold the roller in disengaged position, an extension on the detent, and means on the shutter for cooperating with the extension to release the pawl when the shutter is in open position.

6. A coin receptacle having a coin receiving opening therein, a shutter for said opening, means for locking the shutter against reopening, said locking means comprising a cam controlled by said shutter, biasing means tending to hold the shutter in closed position, an opposed cam in fixed relation to the wall, a follower adapted to engage both cams and biasing means tending to hold the follower in engagement with both cams, said cams defining a progressively constricted passageway for the follower in the direction against which the shutter is locked.

7. A coin receptacle having a coin receiving opening therein, a shutter for said opening, means for locking the shutter against reopening before it is fully closed, said locking means comprising a cam controlled by the shutter, spring means adapted to urge the shutter to its closed. position, a cam in xed relation to the receptacle, said controllable and xed cams defining a progressively constrieted passageway, a roller adapted to cooperate with said cams, a pivoted support for the roller for swinging the roller into and out of engagement with the cams, spring means for urging thev roller into the passageway, a pawl on the roller support, a pivoted detent cooperating with the pawl to hold the rollerV in disengaged position, spring means for urging the detent against the pawl, an extension on the detent, and means on the shutter for cooperating with the extension to release the pawl when the shutter is in `open position. y

JOHN K. JACKSON. 

